Apps aid productivity

I use a few apps on my Android phone to help me organise and speed up what I need to do. Here are my three favourites.

Swype keyboard. Type Fast, Swype Faster buff.ly/11yU0h9. After a few days using this you won't want to go back to poking keys.
— @not9to5 (@not9to5) March 25, 2013

COL Reminder - buff.ly/10Bo1Ox Never forget anything ever again. With the donate version you get 4 levels of reminder priority.
— @not9to5 (@not9to5) March 25, 2013

Llama knows where you are and automatically alters your phone's profile etc according to your needs. Indispensible.buff.ly/10BpXqk
— @not9to5 (@not9to5) March 25, 2013

What apps do you use? Can you recommend some more?